Door for vehicle

Abstract

A vehicle door according to an exemplary embodiment enhances coupling strength through structural coupling by molding a window frame of a door module assembled between a door trim and the door panel with a separate aluminum injection product, and insert-injection molding a coupling portion of the window frame to a module body, and a groove is formed along the coupling portion of the window frame coupled to the module body to easily distinguish respective parts and serve to carry out sealing in injection molding.

What is claimed is: 
     
       1. A vehicle door comprising:
 a door panel formed by bonding a door outer panel and a door inner panel; 
 a door module comprising a module body and a window frame, and coupled to an inner side of the door inner panel; and 
 a door trim coupled to an inner side of the door module, 
 wherein the window frame is integrally formed through aluminum injection molding, and forms a coupling portion where a plurality of penetration holes are formed at a regular interval along a lower end portion that is coupled to the module body, and 
 during injection molding of a plastic resin, the coupling portion of the module body is insert-injection molded to the module body such that the plastic resin is structurally coupled by being cured while being introduced through the plurality of penetration holes formed in the coupling portion; and 
 wherein, in the window frame, a groove is formed in a constant shape along a length direction of the coupling portion. 
 
     
     
       2. The vehicle door of  claim 1 , wherein the plurality of penetration holes are formed along an interior surface of the groove. 
     
     
       3. The vehicle door of  claim 2 , wherein the plurality of penetration holes are formed in the shape of a quadrangle. 
     
     
       4. The vehicle door of  claim 1 , wherein an interior surface and an exterior surface of the coupling portion of the window frame are insert-injection molded between an inner end and an outer end at an upper end portion of the module body. 
     
     
       5. The vehicle door of  claim 4 , wherein, during the injection molding, a stopper hole for insertion of a stopper of each mold is formed in each of the inner end and the outer end of the module body to support the coupling at opposite sides. 
     
     
       6. The vehicle door of  claim 5 , wherein the stopper hole is formed in each of an inner end of the module body, corresponding to a lower portion of each penetration hole formed in the coupling portion, and an outer end of the module body, corresponding to a lower portion between the respective holes of the coupling portion. 
     
     
       7. The vehicle door of  claim 4 , wherein a front end of the inner side is formed in an interior surface of the groove formed in the coupling portion, and the outer end is formed to surround an exterior surface of the groove formed in the coupling portion. 
     
     
       8. The vehicle door of  claim 4 , wherein a connection portion that connects the inner end and the outer end through the penetration hole formed in the groove is formed in the module body.